Evaluation of cloud seeding projects in 1391-92

Estimation of rainfall increasegained by cloud seeding projects in central regions of Iran (including the provinces of Yazd, Kerman, Isfahan and Fars) and North West of Iran (including East Azerbaijan province and adjacent regions) in 1391-92 was carried out. Furthermore, hydrological assessment of the project was performed to determine the possible increase in surface runoff and ground water recharge, that gained by cloud seeding projects.Finally, economical assessment of the project based on determination cost for one cubic meter water gained by cloud seeding projects was carried out.